<form action='{{ url("admin/classone")}}' method='get'>
    <div class="block-area" id="text-input">
        <div class="col-lg-4">
            <p> 类名：</p>
           <input type='text' class='form-control m-b-5' name='classname'>
        </div>
        <div class="col-lg-4">
            <p>等级：</p>
           <input type='text' class='form-control m-b-5' name='level'>
        </div>
        <!-- <input type='submit' class='btn' value='搜索数据'> -->
        <div class="col-lg-4">
        <p>&nbsp;</p>
            <input type='submit' class='btn' value='搜索数据'>
        </div>
    </div>
</form>